Average Co-Inventor Count = 2.18
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Aco Severin Ahlmann Gmbh & Co Kg (4 from 34 patents)
4 patents:
1. 7524133 - Surface water drainage system
2. 7491017 - Surface drainage system
3. 7059804 - Drainage device
4. 6793439 - Securing device for a drainage channel